ISL85410 Просмотр технического описания (PDF) - Renesas Electronics
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ISL85410 Datasheet PDF : 21 Pages
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ISL85410
Absolute Maximum Ratings
VIN to GND. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +43V
PHASE to GND. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to VIN+0.3V (DC)
PHASE to GND. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -2V to +44V (20ns)
EN to GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +43V
BOOT to PHASE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +5.5V
COMP, FS, PG, SYNC, SS, VCC to GND . . . . . . . . . . . . . . . . . . -0.3V to +5.9V
FB to GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +2.95V
ESD Rating
Human Body Model (Tested per JESD22-A114) . . . . . . . . . . . . . . . . . 2kV
Charged Device Model (Tested per JESD22-C101E). . . . . . . . . . . . .1.5kV
Latch-up (Tested per JESD-78A; Class 2, Level A) . . . . . . . . . . . . 100mA
Thermal Information
Thermal Resistance
JA (°C/W) JC (°C/W)
DFN Package (Notes 5, 6) . . . . . . . . . . . . . .
42
4.5
Maximum Junction Temperature (Plastic Package) . . . . . . . . . . . .+150°C
Maximum Storage Temperature Range . . . . . . . . . . . . . .-65°C to +150°C
Ambient Temperature Range . . . . . . . . . . . . . . . . . . . . . . .-40°C to +125°C
Operating Junction Temperature Range . . . . . . . . . . . . . .-40°C to +125°C
Pb-Free Reflow Profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . see TB493
Recommended Operating Conditions
Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .-40°C to +125°C
Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +3V to +40V
CAUTION: Do not operate at or near the maximum ratings listed for extended periods of time. Exposure to such conditions may adversely impact product
reliability and result in failures not covered by warranty.
NOTES:
5. JA is measured in free air with the component mounted on a high effective thermal conductivity test board with “direct attach” features. See Tech
Brief TB379 for details.
6. For JC, the “case temp” location is the center of the exposed metal pad on the package underside.
Electrical Specifications TA = -40°C to +125°C, VIN = 3V to 40V, unless otherwise noted. Typical values are at TA = +25°C. Boldface
limits apply across the junction temperature range, -40°C to +125°C
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
(Note 9)
MAX
TYP
(Note 9) UNITS
SUPPLY VOLTAGE
VIN Voltage Range
VIN Quiescent Supply Current
VIN Shutdown Supply Current
VCC Voltage
POWER-ON RESET
VIN
IQ
VFB = 0.7V, SYNC = 0V, fSW = VCC
ISD EN = 0V, VIN = 40V (Note 7)
VCC VIN = 6V, IOUT = 0 to 10mA
3
40
V
80
µA
2
4
µA
4.5
5.1
5.7
V
VCC POR Threshold
Rising edge
Falling edge
2.35
2.75
2.95
V
2.6
V
OSCILLATOR
Nominal Switching Frequency
fSW FS pin = VCC
Resistor from FS pin to GND = 340kΩ
430
500
570
kHz
240
300
360
kHz
Resistor from FS pin to GND = 32.4kΩ
2000
kHz
Minimum Off-Time
Minimum On-Time
FS Voltage
Synchronization Frequency
tOFF
tON
VFS
SYNC
VIN = 3V
(Note 10)
RFS = 100kΩ
0.39
300
150
ns
90
ns
0.4
0.41
V
2000
kHz
SYNC Pulse Width
100
ns
ERROR AMPLIFIER
Error Amplifier Transconductance Gain
gm
External compensation
Internal compensation
165
230
295
µA/V
50
µA/V
FB Leakage Current
Current Sense Amplifier Gain
FB Voltage
VFB = 0.6V
RT
TA = -40°C to +85°C
TA = -40°C to +125°C
0.46
0.590
0.590
1
0.5
0.599
0.599
150
nA
0.54
V/A
0.606
V
0.607
V
FN8375 Rev 7.00
March 13, 2015
Page 6 of 21
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